Private Branch Exchange (PBX) Systems 

There are 5 products.
Grandstream Networks UCM6202, IP PBX (private & packet-switched) system, 500 user(s), G.711,G.722,G.723,G.726,G.729A,G.729B,iLBC, Black, H.264, Desktop,Wall mount
Panasonic KX-TDA100NE, 128 user(s), 12 kg, 334 x 270 x 390 mm
Grandstream Networks UCM6510, IP Centrex (hosted/virtual IP), 2000 user(s), G.711,G.722,G.723,G.723.1,G.726,G.729A,G.729B,iLBC, Black, H.264, Rack mount
Grandstream Networks UCM6204, IP PBX (private & packet-switched) system, 500 user(s), G.711,G.722,G.723.1,G.726,G.729A,G.729B,iLBC, Black, Desktop,Rack mount, TCP/UDP/IP, RTP/RTCP, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP/HTTPS, PPPoE, SIP...
Grandstream Networks UCM6208, IP PBX (private & packet-switched) system, 800 user(s), G.711,G.722,G.723,G.726,G.729A,G.729B,iLBC, Black, H.264, Rack mount
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